package com.example.demo;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.util.ObjectUtils;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Created by Jack on 2017/6/17.
 */
@Component
public class SpringMVCInterceptor implements HandlerInterceptor {

    private Logger logger = LoggerFactory.getLogger(SpringMVCInterceptor.class);

    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        logger.info("o:{}", ObjectUtils.identityToString(o));
        logger.info("getAttribute id:{}",httpServletRequest.getAttribute("id"));
        logger.info("getParameter id:{}",httpServletRequest.getParameter("name"));
        logger.info("httpServletResponse:{}",httpServletResponse);

        logger.info("preHandle");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
        logger.info("postHandle");
    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {
        logger.info("afterCompletion");
    }
}
